D x 36.7=Twhere D is distance in inches traveled in two seconds, and T is temperature in degrees Fahrenheit. You can round the multiplier to 37 so it’s easier to do this in your head, and you can probably round off the inches too if you’re not really fussy.
You may complain that ants don’t always run. True, sometimes they dawdle when they’re in the midst of something to eat like a dried spill of orange juice. But I’ve noticed that when they’re on graph paper, they scurry.
So there you have it. Some people may object that it’s too hard to carry around graph paper, a metronome, and a calculator to get it really right. Ants may scurry across the paper at an angle, skewing the accuracy. Besides, what about Celsius? True. But then you can always count cricket chirps. Or use my old standby: Count the number of insects a dozen swirling, darting barn swallows catch in a minute and divide by 16. Works every time.